CN107561822A - Optical component, optical component manufacture method and camera - Google Patents
Optical component, optical component manufacture method and camera Download PDFInfo
- Publication number
- CN107561822A CN107561822A CN201710518709.4A CN201710518709A CN107561822A CN 107561822 A CN107561822 A CN 107561822A CN 201710518709 A CN201710518709 A CN 201710518709A CN 107561822 A CN107561822 A CN 107561822A
- Authority
- CN
- China
- Prior art keywords
- lens
- retainer
- optical component
- shrinkage coefficient
- mold shrinkage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/0048—Moulds for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/14—Viewfinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
- B29C2045/14327—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
- B29C2045/14762—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies using shrinkage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Astronomy & Astrophysics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Lens Barrels (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of optical component, the optical component include：Lens, the lens have lens surface and are maintained in retainer；The part of retainer, the part of the retainer contact with the lens surface；And holding part, the holding part are configured to the lens being maintained in the retainer, wherein, the mold shrinkage coefficient for the material that the mold shrinkage coefficient ratio for forming the material of the retainer forms the lens is small by more than 0.3%.And a kind of camera and a kind of optical component manufacture method for being used to manufacture optical component.
Description
Technical field
This disclosure relates to the manufacture method of optical component and optical component, is related to for example in digital single lens reflex camera
The optical component used in view finder, such as the lens with retainer, and it is related to the method for manufacturing this optical component.
Background technology
It was found that resin lens can actually use in various implementations, such as the imaging len in digital camera, work
For for the reading lens of CD to be recorded and played back on CD and as the projecting lens in projecting apparatus.For drop
The purpose of low cost, this resin lens manufacture typically via injection-molded.In order to be embedded in resin lens as part
Into product and product is worked, lens can be placed in frame-type lens holder and made in post processing
Mirror is integrated with lens holder.This lens holder is otherwise referred to as lens barrel, but is referred to as retainer in this manual.
This retainer can cause lens more simply are attached into camera, and the retainer can work as driving part
Have the function that to stop that light is led to suppress the reflection at the side surface of lens for mobile lens, or the retainer
The afterimage (that is, easel mask) of cause.
Typically, using adhesive to be maintained in lens in retainer in the case of lens and retainer integrated
Into unit.The increased problem of cost is combined in post processing however, being caused using adhesive.Japanese Patent Laid-Open No.2004-
53879 methods for disclosing lens of the manufacture with retainer.This method uses dual molding, wherein will be used for retainer first
Resin material be expelled in cavity, then inject the resin material for lens.
According to the method disclosed in Japanese Patent Laid-Open No.2004-53879, set in the inner peripheral surface of retainer convex
Go out portion so that the resin for lens surrounds protuberance so that retainer and lens combine.Using poly- comprising alicyclic structure
Resin is as the resin for lens.It should be noted that for the resin material of retainer mold shrinkage coefficient and be used for
Difference between the mold shrinkage coefficient of the resin material of lens is preferably in 0% to 0.2% scope.
Fig. 7 is the view for describing Japanese Patent Laid-Open No.2004-53879, and Fig. 7 is that (plane includes along plane
The optical axial of lens and parallel to optical axial) obtained by described in Japanese Patent Laid-Open No.2004-53879
The sectional view of lens with retainer.Fig. 7 shows what the whole side surface of resin lens 81 was covered by resin keeper 82
Construction.Projection 85 is arranged in the inner circumferential of resin keeper 82.When lens material around projection 85 and is cured
When, form bottom cutting portion.When retainer 82 is cutting lens 81 on the direction of the optical axial of lens 81, lens 81
It is maintained in retainer 82.
However, used when using the polymer resin comprising alicyclic structure to be used as in Japanese Patent Laid-Open No.2004-53879
When the resin material of lens, the bonding force at interface between retainer and lens becomes unstable, for example, because using
Polycarbonate resin in retainer material is not sufficiently mixed with the polymer resin comprising alicyclic structure at interface.
In order to solve the problem, according to Japanese Patent Laid-Open No.2004-53879 so that the resin material for retainer
Mold shrinkage coefficient and small to 0% to 0.2% for the difference between the mold shrinkage coefficient of the resin material of lens.Although
The construction is intended to suppress may be by the stripping at the interface caused by the difference of heat distortion amount after molding, but retainer
The bonding force at interface between lens is often not able to continuously bear physical impact and thermal cycle.
When bonding force at the interface between retainer and lens is unstable, after the product for removing molding from mould
The bonding force (may be peeling-off at interface) between retainer and lens may be released.Therefore, bonding force is released (handing over
Interface is peeling-off) at the time of may change for the products of multiple moldings.It is expected that removed in lens from mould
Afterwards, lens are by the naturally cold influence for refusing to accept external force.However, the problem of following be present.Specifically, when peeling-off
The product variations for multiple moldings are carved, or peels off occur at a part of place of the product of molding without sending out during cooling
Then life produces stress, this will cause optical surface in the other parts of the product of molding at not peeling-off part
Distortion.This can cause the unstable surface accuracy of lens and prevent to obtain have high-precision optical component.
The content of the invention
The one side of the disclosure provides a kind of optical component, and the optical component includes：Lens, the lens, which have, to be protected
Hold the lens surface in retainer；The part contacted with lens surface of retainer；And holding part, the holding part structure
Cause lens being maintained in retainer.Wherein form the material of the mold shrinkage coefficient ratio formation lens of the material of retainer
Mold shrinkage coefficient is small by more than 0.3%.
The other aspect of the disclosure provides the camera for including above-mentioned optical component.
The other aspect of the disclosure additionally provides the optical component manufacture method for manufacturing optical component, wherein passing through
Molten resin is expelled in the cavity of mould so that lens are maintained in retainer.Retainer include preceding surface, rear surface,
Outer surface and inner peripheral surface, the preceding surface and the outer surface is contacted mould to form a part for cavity, inject
Mold shrinkage coefficient ratio forms the molten resin of the mold shrinkage coefficient big more than 0.3% of the material of retainer.
According to these aspects of the disclosure, the optical component with high optics surface accuracy can be stably obtained.
By reference to accompanying drawing, from the description of following illustrative embodiment the other feature of the disclosure will become it is aobvious and
It is clear to.
Brief description of the drawings
Figure 1A and Figure 1B is view of the description according to the optical component of exemplary embodiment.
Fig. 2 is view of the description manufacture according to the mould used in the method for the optical component of exemplary embodiment.
Fig. 3 is view of the description according to the embodiment of exemplary embodiment.
Fig. 4 A and Fig. 4 B are view of the description according to the embodiment of exemplary embodiment.
Fig. 5 is view of the description according to the embodiment of exemplary embodiment.
Fig. 6 A, Fig. 6 B and Fig. 6 C are view of the description according to the embodiment of exemplary embodiment.
Fig. 7 is the view for the convenient example for describing teaching in prior art.
Embodiment
Figure 1A and Figure 1B shows the lens with retainer, and the lens are used as the exemplary embodiment according to the disclosure
Optical component.Figure 1A is the birds-eye view of the lens with retainer, and the lens are used as the exemplary implementation according to the disclosure
The optical component of example.Figure 1B is along the optical axial O comprising lens and the plane parallel with optical axial O (IB-IB sections)
The sectional view of the lens with retainer of gained, the lens are used as the optical section of the exemplary embodiment according to the disclosure
Part.Lens with retainer include lens 1, and Figure 1A and Figure 1B show that according to the lens 1 of the present exemplary embodiment be eyepiece
Example.Lens 1 include eyes side lens surface 3, object side lens surface 4 and side surface 115.It is coupled in retainer
Projection 117 in hole 202 protrudes from attachment part 116.Attachment part 116 and projection 117 partly form lens
1。
Retainer 2 includes preceding surface 111, rear surface 112 (1121,1122,1123), outer surface 113 and inner peripheral surface
114.Figure 1B shows optical active area 10 and optics inactive area 19.Retainer 2 is circle tube element, the cylindrical shape member
The outer peripheral portion of one (the optics inactive area 19) arrangement that part adjoins in the surface of lens 1, rear surface 112 contacts with lens 1.
In the present example embodiment, the rear surface 112 of retainer 2 includes multiple surfaces.Especially, it is the situation of eyepiece in lens 1
Under, the rear surface 112 of retainer 2 first after surface 1121 be in contact with eyes side lens surface 3 in optics inactive area 19,
Surface 1122 is in contact with a part for the side surface 115 of lens 1 after second, surface 1123 and the attachment of lens 1 after the 3rd
116 are divided to be in contact.Using the construction, retainer 2 provides the function of stopping light to lens 1.
Except above-mentioned cylindrical portion, retainer 2 can include the assembled portion 201 that will coordinate with peripheral parts.
The projection 117 of lens 1 is coupled in the hole 202 in retainer 2, so as to adjoin eyes side lens surface 3 in retainer 2
In the case of retainer 2 is fixed to lens 1.Hole 202 in retainer 2 (projection 117 of lens 1 is coupled in the hole)
Assembled portion 201 can be adjoined to set or can set in other opening position.Optics on eyes side lens surface 3 is effective
Region 10 is surrounded by inner peripheral surface 114.Preferably, the diameter of projection 117 is from the attachment part 116 of lens 1 towards holding
The preceding surface 111 of device 2 increases.The construction allows the projection 117 of lens 1 to have the undercut shape on retainer 2, and
Lens 1 are more firmly kept.In the present example embodiment, attachment part 116, projection 117 and hole 202 constitute use
In the holding part being maintained at lens 1 in retainer 2, projection 117 will be coupled in the hole.
The preceding surface 111 of retainer 2 has the incident light on the preceding surface from the eyes side of lens 1 towards lens 1
The function of outer lateral reflection.It is therefore preferred that plane of the preceding surface 111 along the optical axial O perpendicular to lens 1 is placed.Preceding surface
111 can be inclined upwardly in the side that the thickness of retainer 2 reduces from the center of lens 1 towards the periphery of the lens.Current surface
During 111 inclination, the light for being kept the reflection of preceding surface 111 of device 2 is advanced towards the outside, it is possible to reduce shadow of this light to optical property
Ring.
Preferably, the rear surface 112 of retainer 2 has the shape for the optical surface for following eyes side lens surface 3.So
And rear surface 112 can tilt perpendicular to optical axial O or relative to optical axial O.
The outer surface 113 of retainer 2 is not particularly limited relative to the optical axial O of lens 1 angle.Although
Preferably, outer surface 113 is inclined upwardly in the side that retainer 2 is inserted into mould to be more easily inserted into retainer 2
Into mould, but outer surface 113 can be parallel to the optical axial O of lens 1.
The adjacent posterior face 112 of inner peripheral surface 114 of retainer 2.Preferably, inner peripheral surface 114 is with (described relative to plane
Plane is vertical with the optical axial O of lens 1) it is not less than 20 ° and the angle tilt no more than 80 ° so that aperture (aperture)
Increase from the center of lens 1 towards eyes side.When described angle is not more than 20 °, suppressing the effect of afterimage reduces.When described
When angle is not less than 80 °, the pattern draft to be set in moulded holder 2 reduces, and this makes it difficult to moulded holder 2.
Preferably, consider suppress afterimage, angle [alpha] be not less than 10 °, the angle be by lens 1 optical axial O with it is linear
Into, the crosspoint on inner peripheral surface 114 and rear surface 112 is connected by the line with the marginal portion 204 of object side lens surface 4
Get up.In other words, when angle [alpha] is bigger, the side surface 115 from lens 1 and the amount reduction for reaching the light of eyes, so as to press down
Afterimage is made.
Preferably, retainer 2 is made up of the resin with light blocking function.Preferably, such as retainer 2 is by by dyes
Material into black is made.
The preferably such material of resin with light blocking function, such as the material is relative to whole retainer 2
Weight include 10% and such as glass filler of 30% amount no more than weight not less than weight include material, and
The mold shrinkage coefficient that the mold shrinkage coefficient ratio of the material is used for the resin of lens 1 is small by more than 0.3%.Being somebody's turn to do can comprising material
To be carbon filler either other any inorganic material incompatible with resin.Preferably, it is reinforcing fiber comprising material.At this
In specification, mold shrinkage coefficient is the side by the way that the length from the side of cube sample mould to be subtracted to the product of molding
Length obtained by length (that is, the length that the product of molding is shunk) divided by cube sample mould side length and obtain
The value obtained, the product of the molding is by being poured into molten resin in sample mould and cooling down molten resin so that it is consolidated
Change, then remove and obtain from sample mould.Especially, mold shrinkage coefficient is obtained by following formula
Value.
S=(A-B)/A
S：Mold shrinkage coefficient
A：The length of the side of cube sample mould
B：The length of the side of the product of molding, the product of the molding is by the way that molten resin is poured into sample mould
In and cool down molten resin so that its solidify, then remove and obtain from sample mould.
The smoothness of mechanical strength, mold shrinkage coefficient and surface changes according to the weight content comprising material.Even if
When weight content is constant, the smoothness of mechanical strength, mold shrinkage coefficient and surface is also according to the fibre length comprising material
And change.Preferably, fiber shape of the selection comprising material or content will not only consider mold shrinkage coefficient, it is also contemplated that institute
The intensity and surface nature of desired product.
Furthermore it is preferred that the content comprising material (reinforcing fiber) is not small relative to the content for the material for forming retainer 2
10% in weight and 50% no more than weight
50% material that content comprising material exceedes weight has the flowable of difference, and is not therefore suitable for
The molding material of retainer 2.
Content comprising material is insufficient less than 10% mechanical strength of weight, and is not therefore suitable for keeping
The material of device 2.
Preferably, the basic material for the resin material of retainer 2 is the poly- of 50% amount comprising not less than weight
The material of carbonic ester.Although details will be provided below, moulded lens 1 will be used in the case where retainer 2 inserts in a mold
High-temperature fusion resin pour into the mould.Now, if retainer 2 is made of makrolon, then due to poly- carbon
The high glass transition temperature of acid esters, retainer 2 are hardly possible by (also referred to as saturating in this manual from high-temperature resin
Mirror resin) heat melted, the high-temperature resin, which is dumped into mould, is used for moulded lens 1.
Except above-mentioned makrolon, makrolon (the ABS mixing of 10% amount comprising not less than weight can be used
Into the makrolon), ABS, PS or PMMA material.Alternatively, 10% comprising not less than weight can also be used
The makrolon of amount, ABS, PS or PMMA composite material.
Preferably, the resin material for lens 1 is the material of the cycloolefin of 50% amount comprising not less than weight.Ring
Olefin base resins material is nonpolar.This material will not be sufficiently mixed at interface with polar resin material.If
The mixing of both materials is abundant, then can obtain fabulous cohesive.The cohesive when the difference of solubility parameter (SP values) is big
Low, various kinds of resin material compositions of the difference not less than 0.5 of solubility parameter (SP values) are preferable.
The composition of compatible various kinds of resin causes the increased bonding force between lens 1 and retainer 2, the He of lens 1
Retainer 2 interacts their deformation, the deformation be by the difference of thermal expansion, the different of thermal contraction and it is hygroscopic not
With caused, this causes the change of the optical property associated with the change of environment.
In the optical component according to the exemplary embodiment of the disclosure, form the material of lens 1 and form retainer 2
Material is not sufficiently mixed at interface (in other words, to be formed the material of lens 1 and is formed between the material of retainer 2
Compatibility is low), therefore can not expect that only there is strong bonding at interface.For the stable holding lens 1 in retainer 2
Single structure becomes very necessary.According to the exemplary embodiment shown in Figure 1A and 1B, hole 202 is arranged on assembled portion 201
A part in, and when moulded lens 1 in the case of being inserted into a mold in retainer 2, lenticular resins are poured into
In hole 202.When the attachment part 116 of diameter towards the lens 1 in hole 202 reduces, hole 202 is used as the bottom when lenticular resins solidify
Structure is cut, and lens 1 are securely held in and (be fixed to) retainer 2.The present exemplary embodiment is only as an example, be used for
The structure and position that the holding part of lens 1 is kept in retainer 2 are not particularly limited.
Next, by description according to the method for the manufacture optical component of the present exemplary embodiment.
High-temperature fusion resin (the lens for moulded lens 1 are injected in the case of by being inserted in a mold in retainer 2
Resin) and by allowing lenticular resins to flow through the rear surface 112 of retainer 2, to manufacture the light according to the present exemplary embodiment
Department of the Chinese Academy of Sciences's part (optical component is the lens for having retainer).Then, by allowing lenticular resins to surround one of retainer 2
Shunting is dynamic so that retainer 2 keeps lens 1 and has light blocking function.
Fig. 2 shows the sectional view of the inside of the mould when moulded lens 1.Fig. 2 is shown is inserted in mould in retainer 2
Molten resin (lenticular resins) is expelled in cavity and completed the state of filling in the case of in tool, it is described molten
Melt resin is the material for forming lens 1.To sprue gate, the general structure of mould and injection molding machine, known skill is used
Art, therefore their description will be omitted.
The transfer molding eyes of mold component 31 side lens surface 3, mold component 30 shifts mouldings side lens surface 4,
Mold component 29 accommodates mold component 31, and mold component 28 accommodates mold component 30.Contain the mold component of mold component 30
28 are provided with the shape of a part for the side surface 115 of transfer moulded lens 1 and assembled portion 201.Contain mold component 30
Mold component 28, mold component 31, the mould of transfer mouldings side lens surface 4 of transfer molding eyes side lens surface 3
Tool part 30, retainer 2 rear surface 112 and be provided with the hole 202 of end difference and constitute cavity.
It is injected into cavity and fills the molten resin (lenticular resins) of the cavity with the retainer 2 of insertion in sky
Intracavitary combines, and the molten resin is lens material, removes the product of molding after cooling treatment from mould.
At the time of injection has been completed, the mold of eyes side lens surface 3 and transfer molding eyes side lens surface 3
Part 31 contacts, and object side lens surface 4 contacts with the mold component 30 of transfer mouldings side lens surface 4.In addition, lens 1
Side surface 115 and the part of assembled portion 201 contacted with containing the mold component 28 of mold component 30, the mold
Part 30 shifts mouldings side lens surface 4.Lenticular resins contact with the rear surface 112 of retainer 2, the interface between them
It is in close contact.Now, retainer 2 in the state in which, the molecule described in the state in retainer is by lens tree
It can be easily moved when the heat and power of fat.
Hereafter, lenticular resins are subjected to cool to handle, and mold shrinkage occurs.The resin of retainer 2 is formed (in this explanation
In book be also referred to as retainer resin) mold shrinkage coefficient ratio lenticular resins mold shrinkage coefficient it is small by more than 0.3%.Therefore,
Lens 1 shrink more than retainer 2.When the difference of mold shrinkage coefficient is not less than 0.3%, contractive effect, which exceedes, keeps tight
The power of close contact condition, therefore air enters in interface during cooling treatment to reduce (or elimination) bonding force.
In cooling treatment, the optical surface of lens 1 and the intimate surface contact of mould, lens 1 are closely held in
In the mould.Therefore, even if the bonding force at interface between retainer 2 and lens 1 is lowered (or being eliminated),
Have little influence on surface accuracy.
Preferably, the region that retainer 2 contacts with lens 1 is small.The construction reduces viscous between retainer 2 and lens 1
With joint efforts, so as to more easily reducing (or eliminate) bonding force when lens 1 are completely covered than retainer 2.
In this way, by allowing to reduce the bonding force of (or eliminate) between retainer 2 and lens 1 on one's own initiative, retainer 2 with
The close contact state at interface between lens 1 is no longer unstable.In other words, this prevent bonding force to reduce (or elimination)
At the time of for multiple molding product variations.This can reduce the change of the surface accuracy of lens 1, can obtain with high accuracy
Optical component, it is described change and the interface between retainer 2 and lens 1 at bonding force (retainer 2 utilize the bonding
Try hard to keep and hold lens 1) change be associated.
First embodiment
Next, embodiment will be described.Refer to the attached drawing 3, accompanying drawing 4A and accompanying drawing 4B description are obtained by the present embodiment
Optical component (lens with retainer) and the method for manufacturing the optical component.
Fig. 3 is the schematic diagram of manufactured optical component in embodiment.Fig. 4 A are from the side of eyes side lens surface 3
The birds-eye view of observation.Fig. 4 B are the birds-eye views from object side lens surface 4.Optical component includes lens 1 and retainer 2.
As lens 1, such as manufacture forms the view finder of digital single lens reflex camera and saturating with the lens for adjusting diopter
Mirror.Retainer 2 is manufactured, sleeve 20 is connected to the retainer.Core is inserted into sleeve 20, optical component is embedded into phase
Optical component allow in machine in the square upward sliding of optical axial.Retainer 2 is manufactured with following size：15.3mm
Lateral dimension b, 21.06mm longitudinal size a.The material for forming lens 1 is used as using cycloolefin based polymers.Under load
Deformation temperature is 122 DEG C, and mold shrinkage coefficient is 0.6%.Using be wherein mixed with the black polycarbonate of glass filler as
Form the material of retainer 2.The fibre diameter of glass filler is 10 μm, and long fibre of the length not less than 100 μm and length is small
In 100 μm of chopped fiber weave in.This glass filler is mixed with 20% amount to obtain 0.3% mold shrinkage coefficient
And 137 DEG C of creeping under load temperature.Lens 1 are biconvex lens, and the biconvex lens has spherical on eyes side
Lens surface 3 and there is non-spherical lens surface 4 on object side.Design mould make it that the maximum gauge of lens 1 is
4.46mm。
Fig. 5 is the sectional view obtained by V-V lines along Fig. 3.Retainer 2 of the manufacture with bellmouth 402, the bellmouth shape
Into in bridging part 401, the cylindrical portion of retainer 2 is connected to sleeve 20 by the bridging part, and bellmouth 402 has
1mm diameter j and 10 ° of cone angle k.
Next, the method that optical component (lens with retainer) of the manufacture according to the present embodiment will be described.
Fig. 6 A are the sectional views for the mould of moulded lens 1.
The mould includes removable side installing plate 23, spacer block 24, removable side mold plate 25, the and of fixed side mold plate 26
Cavity adaptor plate 27.The mould also includes the mold component 30 and transfer mould of the lens surface 4 on transfer mouldings side
The mold component 31 of lens surface 3 on eyes side processed.Mold component 28 accommodates mold component 30, and mold component 29 accommodates mould
Part 31.The mould also includes push rod 32, top plate 38 and gate bush 35.Water pipe 39 allows hot water to pass through to adjust mould
The temperature of tool.
Fig. 6 B are to show that mould is opened and retainer 2 inserts the sectional view of state in a mold.When mould is opened
When, retainer 2 is inserted between mold component 31 and mold component 29, the transfer molding eyes of mold component 31 side lens surface
3, mold component 29 accommodates mold component 31.Then, the outer surface and preceding surface and mold that mould causes retainer 2 are closed
The rigid contact of part 29, the mold component 29 accommodate mold component 31.135 DEG C of hot water passes through water pipe 39.
The nozzle of the plasticizing equipment (not shown) in molding machine is abutted gate bush 35 in this condition, be injected through
Melt and obtain resin for forming the material of lens 1.Injection time is three seconds.It could therefore be concluded that just injecting it
Resin surrounds the rear surface flow of retainer 2 afterwards, and the interface between retainer 2 and lens 1 is temporarily in and closely connect
Tactile state.It may also be inferred that for formed retainer 2 resin in the state in which, described in the state
Molecule in retainer can be easily moved in the heat and power of the molten resin by the material for forming lens 1.
In pressurize processing after injection treatment, molded surface is shifted by the material for forming lens 1 against lens surface
The molten resin of material compresses, so as to shift moulded lens surface.Dwell time is 20 seconds.
Then, mould is opened after the cool time of 140 seconds.
Fig. 6 C are to show that mould is opened and completes the sectional view of the state of ejection.Mobile push rod 32 and mold forward
Part 30, mould and molding product separate each other, and the transfer of mold component 30 has moulded the lens surface 4 on object side.
Under the state, molding product is discharged to the outside of mould by stripper apparatus.To in the lens with retainer of acquisition
For each, the bonding force between lens 1 and the rear surface of retainer 2 is completely eliminated, and stably obtaining has high accuracy
The lens with retainer of optical surface.Melted material for forming lens 1 is in the cone being arranged in bridging part 401
In shape hole 402, the cylindrical portion of retainer 2 is connected to sleeve 20 by the bridging part.Therefore, bottom cutting portion is formed, this
Allow to lens 1 and retainer 2 being integrated into unit securely.
Measurement to the form accuracy of the lens 1 of taking-up has shown that form error is not more than 1 μm.
Although retainer material and lens material all cool down in cooling treatment, it is used for the receipts for forming the material of lens 1
Contracting amount is more than the amount of contraction for the material for being used to be formed retainer 2.Glued it could therefore be concluded that the effect of convergent force has exceeded
Effect with joint efforts, and bonding force is eliminated during cooling treatment.However, it is possible to it is inferred that, the lens during the period
Surface 4 keeps the close contact with the lens surface of mould transfer molded surface, and is almost closely connect without generation with eliminating
Touch the change of associated surface accuracy.
In addition, the lens 1 obtained and the retainer 2 obtained are melted again, and their mold shrinkage is measured again
Coefficient.Then, the mold shrinkage coefficient of lens 1 is 0.6%, and the mold shrinkage coefficient of retainer 2 is 0.3%, described to shrink system
Number is identical with the constriction coefficient obtained before moulding.
Second embodiment
In addition to the material for forming retainer, to manufacture optical component with first embodiment identical method.
On the material for being used to form retainer in a second embodiment, using such material, wherein with 30% amount
To obtain 0.2% mold shrinkage coefficient and 139 DEG C of creeping under load temperature, the glass filler has hybrid glass filler
10 μm of fibre diameters and long fibre of the length not less than 100 μm and chopped fiber friendship of the length less than 100 μm in glass filler
It is woven in together.Other situations are identical with the situation of first embodiment.
Each form error of the lens with retainer obtained is not more than 1 μm, on the rear surface of retainer and thoroughly
Bonding force between mirror is eliminated due to the interface that air enters between lens and the rear surface of retainer, and stably
Obtain the lens with retainer with high-precision optical surface.
First comparative examples
In addition to the material for forming retainer, to manufacture optical component with first embodiment identical method.
On the material for being used to form retainer in the first comparative examples, using such material, wherein with 10%
For amount hybrid glass filler to obtain 0.4% mold shrinkage coefficient and 135 DEG C of creeping under load temperature, glass filler has 10
μm fibre diameter and long fibre of the length not less than 100 μm interweaves with chopped fiber of the length less than 100 μm in glass filler
Together.Other situations are identical with the situation of first embodiment.
On just from mold releasability when the lens with retainer that are obtained, alternatively obtained among molding product
：Wherein air is into the interface between lens and the rear surface of retainer and between the rear surface of retainer and lens
Some products that bonding force is eliminated；And one of the bonding force part residual wherein between the rear surface of retainer and lens
A little products.
Wherein air into the interface between lens and the rear surface of retainer and eliminates the rear surface of retainer
Some products described in bonding force between lens obtain having high-precision optical surface, lens with retainer.Its
In to obtain form error not small for some products described in close contact portion residual between the rear surface of retainer and lens
In 2 μm of flaw product, reason is the distortion in the optical surface being in close contact at the part of residual, even if after demoulding big
It is in close contact and is eliminated when being cooled down in gas.
Second comparative examples
In addition to the material for forming retainer, to manufacture optical component with first embodiment identical method.
Comprising glass filler and only by using black pigment dye handle makrolon be used as second
The material of retainer is formed in comparative examples.Mold shrinkage coefficient is 0.5%, and creeping under load temperature is 128 DEG C.Other situations
It is identical with the situation of first embodiment.
In all lens with retainer obtained after mold releasability, close contact portion or it is fully residual
Stay at the interface between lens and the rear surface of retainer.
Some products described in close contact portion residual wherein between the rear surface of retainer and lens obtain the flaw
Defect product, reason is the distortion in the optical surface being in close contact at the part of residual, even if cooling down in an atmosphere after demoulding
It is in close contact and is eliminated afterwards.On being wherein in close contact the sample on the whole rear surface for remaining in retainer, even if in an atmosphere
It is in close contact after cooling and is not also eliminated.Optical surface is twisted in whole surface, and form error is not less than 4 μm, this
Cause the product of flaw.
Although describing the disclosure by reference to exemplary drawings, it will be appreciated that, the disclosure is not limited to disclosed
Exemplary embodiment.The scope of following claim have been assigned most wide explanation so as to comprising it is all it is this modification and
Equivalent structure and function.
Claims (11)
1. a kind of optical component, the optical component includes：
Lens, the lens have lens surface and are maintained in retainer；
The part of retainer, the part of the retainer contact with the lens surface；With
Holding part, the holding part are configured to the lens being maintained in the retainer,
Wherein, formed the material of the retainer mold shrinkage coefficient ratio formed the lens material mold shrinkage coefficient
It is small by more than 0.3%.
2. optical component according to claim 1,
Wherein described holding part is wherein to be cut into retainer from the projection of the attachment part protrusion formed on lens
In part.
3. optical component according to claim 2,
Wherein described projection has towards the increased diameter of the attachment part.
4. optical component according to claim 1,
Wherein described lens are eyepieces, and eyes side lens surface contacts with the retainer.
5. optical component according to claim 1,
The material for wherein forming the retainer is such material, and reinforcing fiber is blended in comprising poly- carbonic acid in the material
In the material of the composite of ester, ABS, PS, PMMA or these compositions.
6. optical component according to claim 5,
Wherein described reinforcing fiber has 10% not less than weight relative to the material for forming the retainer and is not more than weight
50% content of amount.
7. optical component according to claim 1,
The material for wherein forming the lens includes cycloolefin.
8. a kind of camera, the camera includes：
Optical component, the optical component include lens, and the lens have lens surface and are maintained in retainer,
The part of retainer, the part of the retainer contact with the lens surface, and
Holding part, the holding part are configured to the lens being maintained in the retainer,
Wherein, formed the material of the retainer mold shrinkage coefficient ratio formed the lens material mold shrinkage coefficient
It is small by more than 0.3%.
A kind of 9. optical component manufacture method for being used to manufacture optical component, wherein by the way that molten resin is expelled in mould
Lens are maintained in retainer in cavity, wherein：
The retainer includes preceding surface, rear surface, outer surface and inner peripheral surface, makes the preceding surface and the outer surface
With contacting dies to form a part for cavity；With
Formed the mold shrinkage coefficient small 0.3% of molten resin described in the mold shrinkage coefficient ratio of the material of the retainer with
On.
10. optical component manufacture method according to claim 9,
Wherein described retainer includes hole, and the hole has the diameter reduced towards the cavity, and the molten resin is dumped into
In the hole.
11. optical component manufacture method according to claim 10,
The compatibility of material of the wherein described molten resin with forming the retainer is low.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-130910 | 2016-06-30 | ||
| JP2016130910A JP2018004912A (en) | 2016-06-30 | 2016-06-30 | Optical components, manufacturing method for the same, and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107561822A true CN107561822A (en) | 2018-01-09 |
Family
ID=60806938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710518709.4A Pending CN107561822A (en) | 2016-06-30 | 2017-06-30 | Optical component, optical component manufacture method and camera |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10288833B2 (en) |
| JP (1) | JP2018004912A (en) |
| CN (1) | CN107561822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI752417B (en) * | 2020-02-20 | 2022-01-11 | 揚明光學股份有限公司 | Lens structure and manufacturing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6576393B2 (en) * | 2016-07-29 | 2019-09-18 | キヤノン株式会社 | OPTICAL COMPONENT, OPTICAL COMPONENT MANUFACTURING METHOD, CAMERA, AND FINDER |
| TWI665474B (en) | 2018-04-20 | 2019-07-11 | 大立光電股份有限公司 | Annular optical component, image capturing module and electronic device |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248433U (en) * | 1975-10-02 | 1977-04-06 | ||
| US4198144A (en) * | 1976-04-01 | 1980-04-15 | Canon Kabushiki Kaisha | Eye fundus camera |
| US6392819B1 (en) * | 1999-05-11 | 2002-05-21 | Sharp Kabushiki Kaisha | Objective lens and fabrication method thereof |
| JP2004053879A (en) * | 2002-07-19 | 2004-02-19 | Nippon Zeon Co Ltd | Method of manufacturing lens with holding frame, and lens with holding frame |
| US20040196521A1 (en) * | 2003-03-25 | 2004-10-07 | Alps Electric Co., Ltd. | Method of manufacturing holder-mounted optical element |
| CN1627105A (en) * | 2003-12-09 | 2005-06-15 | 富士能株式会社 | Optical element and method of molding the same |
| JP2007193270A (en) * | 2006-01-23 | 2007-08-02 | Hitachi Maxell Ltd | Lens with cap and manufacturing method therefor |
| JP2008100481A (en) * | 2006-10-20 | 2008-05-01 | Seiko Precision Inc | Diaphragm-integrated lens and its manufacturing method |
| JP2009037055A (en) * | 2007-08-02 | 2009-02-19 | Hitachi Maxell Ltd | Optical element with lens barrel and metallic die for molding optical element |
| JP2012105709A (en) * | 2010-11-15 | 2012-06-07 | Olympus Medical Systems Corp | Tip unit of endoscope |
| CN102791457A (en) * | 2010-03-09 | 2012-11-21 | 奥林巴斯株式会社 | Method for producing resin molded article, resin molded article, resin molded article for endoscope, endoscope using resin molded article, and apparatus for producing the resin molded article |
| JP2013003180A (en) * | 2011-06-13 | 2013-01-07 | Hoya Corp | Lens unit |
| JP2013205813A (en) * | 2012-03-29 | 2013-10-07 | Fujifilm Corp | Optical element with holding frame, and apparatus and method for manufacturing optical element with holding frame |
| WO2014084183A1 (en) * | 2012-11-29 | 2014-06-05 | 株式会社ダイセル | Elastic body for actuator, and piezoelectric actuator |
| JP2014112227A (en) * | 2013-12-05 | 2014-06-19 | Sumitomo Electric Fine Polymer Inc | Method for manufacturing optical lens-holder composite, and optical lens-holder composite |
| CN104106114A (en) * | 2012-01-31 | 2014-10-15 | 柯尼卡美能达株式会社 | Method for producing objective lens for optical pickup device, objective lens, and method for inspecting objective lens |
| CN104142552A (en) * | 2013-05-07 | 2014-11-12 | 佳能株式会社 | Composite plastic lens and method of manufacturing the same |
| JP2014211470A (en) * | 2013-04-17 | 2014-11-13 | アルプス電気株式会社 | Molded lens integrated with lens barrel and method of manufacturing the same |
| JP2015058665A (en) * | 2013-09-20 | 2015-03-30 | 小島プレス工業株式会社 | Insert molding and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4805991A (en) * | 1986-03-13 | 1989-02-21 | Canon Kabushiki Kaisha | Multi-layer resin molded article and method of making the same |
-
2016
- 2016-06-30 JP JP2016130910A patent/JP2018004912A/en active Pending
-
2017
- 2017-06-22 US US15/630,653 patent/US10288833B2/en active Active
- 2017-06-30 CN CN201710518709.4A patent/CN107561822A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248433U (en) * | 1975-10-02 | 1977-04-06 | ||
| US4198144A (en) * | 1976-04-01 | 1980-04-15 | Canon Kabushiki Kaisha | Eye fundus camera |
| US6392819B1 (en) * | 1999-05-11 | 2002-05-21 | Sharp Kabushiki Kaisha | Objective lens and fabrication method thereof |
| JP2004053879A (en) * | 2002-07-19 | 2004-02-19 | Nippon Zeon Co Ltd | Method of manufacturing lens with holding frame, and lens with holding frame |
| CN1681635A (en) * | 2002-07-19 | 2005-10-12 | 日本瑞翁株式会社 | Method of manufacturing lens with hold frame, and lens with hold frame |
| US20040196521A1 (en) * | 2003-03-25 | 2004-10-07 | Alps Electric Co., Ltd. | Method of manufacturing holder-mounted optical element |
| CN1627105A (en) * | 2003-12-09 | 2005-06-15 | 富士能株式会社 | Optical element and method of molding the same |
| JP2007193270A (en) * | 2006-01-23 | 2007-08-02 | Hitachi Maxell Ltd | Lens with cap and manufacturing method therefor |
| JP2008100481A (en) * | 2006-10-20 | 2008-05-01 | Seiko Precision Inc | Diaphragm-integrated lens and its manufacturing method |
| JP2009037055A (en) * | 2007-08-02 | 2009-02-19 | Hitachi Maxell Ltd | Optical element with lens barrel and metallic die for molding optical element |
| CN102791457A (en) * | 2010-03-09 | 2012-11-21 | 奥林巴斯株式会社 | Method for producing resin molded article, resin molded article, resin molded article for endoscope, endoscope using resin molded article, and apparatus for producing the resin molded article |
| JP2012105709A (en) * | 2010-11-15 | 2012-06-07 | Olympus Medical Systems Corp | Tip unit of endoscope |
| JP2013003180A (en) * | 2011-06-13 | 2013-01-07 | Hoya Corp | Lens unit |
| CN104106114A (en) * | 2012-01-31 | 2014-10-15 | 柯尼卡美能达株式会社 | Method for producing objective lens for optical pickup device, objective lens, and method for inspecting objective lens |
| JP2013205813A (en) * | 2012-03-29 | 2013-10-07 | Fujifilm Corp | Optical element with holding frame, and apparatus and method for manufacturing optical element with holding frame |
| WO2014084183A1 (en) * | 2012-11-29 | 2014-06-05 | 株式会社ダイセル | Elastic body for actuator, and piezoelectric actuator |
| JP2014211470A (en) * | 2013-04-17 | 2014-11-13 | アルプス電気株式会社 | Molded lens integrated with lens barrel and method of manufacturing the same |
| CN104142552A (en) * | 2013-05-07 | 2014-11-12 | 佳能株式会社 | Composite plastic lens and method of manufacturing the same |
| JP2015058665A (en) * | 2013-09-20 | 2015-03-30 | 小島プレス工業株式会社 | Insert molding and production method thereof |
| JP2014112227A (en) * | 2013-12-05 | 2014-06-19 | Sumitomo Electric Fine Polymer Inc | Method for manufacturing optical lens-holder composite, and optical lens-holder composite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI752417B (en) * | 2020-02-20 | 2022-01-11 | 揚明光學股份有限公司 | Lens structure and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018004912A (en) | 2018-01-11 |
| US10288833B2 (en) | 2019-05-14 |
| US20180003917A1 (en) | 2018-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4923704B2 (en) | Optical element molding apparatus and molding method | |
| US9242418B2 (en) | Ophthalmic lens containing a fresnel surface and method for manufacturing same | |
| CN100451686C (en) | Optical unit manufacturing method, optical unit, and forming apparatus | |
| CN107561822A (en) | Optical component, optical component manufacture method and camera | |
| CN103424785B (en) | Plastic optical element and manufacture method thereof | |
| CN106371186A (en) | Optical part, method of manufacturing the optical part, and camera | |
| JP3544139B2 (en) | Optical component, optical component molding method, and optical component molding die | |
| JP2006264192A (en) | Plastic optical element and method for molding the same | |
| US20080152886A1 (en) | High-pressure injection moulding process for the production of optical components | |
| US7854879B2 (en) | Optical element molding die, and optical element manufacturing method | |
| JP5522709B2 (en) | Cap manufacturing method | |
| CN113226695B (en) | Resin member and method for producing same | |
| US10527813B2 (en) | Optical part and method for manufacturing optical part | |
| JP2006327147A (en) | Forming method of plastic lens and plastic lens | |
| JP2825015B2 (en) | Molding method of lens barrel | |
| TW200523101A (en) | Molding method, molding die, molded product, and molding machine | |
| JP2008230005A (en) | Plastic lens molding method and lens preform | |
| JP5223257B2 (en) | Method for producing resin hollow molded body | |
| JPH03230920A (en) | Plastic lens, manufacture of plastic lens and die for molding plastic lens | |
| JP2008087407A (en) | Injection-molding method | |
| JPS6176354A (en) | Method and appratus for producing plastic lens | |
| JP2005007713A (en) | Method for demolding plastic molding and mold | |
| WO2024104367A1 (en) | A mold appartus for manufacturing a spectacle lens and relevant methods | |
| JP2005193646A (en) | Optical element and mold for molding optical element | |
| JP5120752B2 (en) | Injection molding equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180109 |